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ES6 class variable alternatives
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2018 update:
There is now a stage 3 proposal - I am looking forward to make this answer obsolete in a few months.
In the meantime anyone using TypeScript or babel can use the syntax:
varName = value
Inside a class declaration/expression body and ...
How do I use $scope.$watch and $scope.$apply in AngularJS?
...e most common scenario and I'm sure you've seen it before, but you didn't know that this has created a watch in the background. Yes, it had! Using AngularJS directives (such as ng-repeat) can also create implicit watches.
Ad 2)
This is how you create your own watches. $watch service helps you to ru...
inject bean reference into a Quartz job in Spring?
...g SpringBeanAutowiringSupport in your Quartz job, is that the job instance now needs to KNOW about Spring, which goes against the whole idea of IoC (dep injection). If you now for example need to use CDI, all your quartz jobs will need to be adjusted, instead of just the one job factory.
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How do I split a string on a delimiter in Bash?
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now after the fix applied, only within the duration of the read command :)
– Johannes Schaub - litb
May 28 '09 at 3:04
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CSS does the width include the padding?
...remember (or find) the names of the different options for a couple of days now... +1 =)
– David says reinstate Monica
Jan 15 '11 at 15:04
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call a static method inside a class?
...o the most common way of calling a static method:
self::staticMethod();
Now, before you start thinking that the :: is the static call operator, let me give you another example:
self::bar();
This will print baz = 1, which means that $this->bar() and self::bar() do exactly the same thing; tha...
Does setting Java objects to null do anything anymore?
...ue. Basically, because you've preallocated an array, the VM sees that. It knows nothing about the "logical" size of your container. Say you have an ArrayList of size 10, backed by a 16-element array. The VM can't know that items 10..15 aren't actually used; if those slots have contents, they will no...
Spring @Transactional - isolation, propagation
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rollback |
v v
value (x) is now dirty (incorrect)
So a sane default (if such can be claimed) could be Read Committed, which only lets you read values which have already been committed by other running transactions, in combination with a propagation le...
Push to GitHub without a password using ssh-key
...e directory.
cp /c/Users/Yuci/.ssh/github_rsa /c/Users/Yuci/.ssh/id_rsa
Now when I run ssh -vT git@github.com again, I have:
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debug1: Trying private key: /c/Users/Yuci/.ssh/id_rsa
debug1: Authentication succeeded (publickey).
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Hi <my username>! You've successfully authenticated, but ...
Why is it bad style to `rescue Exception => e` in Ruby?
...thing else".
Generally, don't do that, except in special cases where you know you don't need to worry. One example:
debugger rescue nil
The debugger function is a rather nice way to set a breakpoint in your code, but if running outside a debugger, and Rails, it raises an exception. Now theoret...